FR1021802A - Appareil d'éclairage - Google Patents
Appareil d'éclairageInfo
- Publication number
- FR1021802A FR1021802A FR1021802DA FR1021802A FR 1021802 A FR1021802 A FR 1021802A FR 1021802D A FR1021802D A FR 1021802DA FR 1021802 A FR1021802 A FR 1021802A
- Authority
- FR
- France
- Prior art keywords
- lighting fixture
- fixture
- lighting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1021802XA | 1940-11-27 | 1940-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1021802A true FR1021802A (fr) | 1953-02-24 |
Family
ID=22288520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1021802D Expired FR1021802A (fr) | 1940-11-27 | 1947-08-07 | Appareil d'éclairage |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1021802A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4542449A (en) * | 1983-08-29 | 1985-09-17 | Canadian Patents & Development Limited | Lighting panel with opposed 45° corrugations |
-
1947
- 1947-08-07 FR FR1021802D patent/FR1021802A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4542449A (en) * | 1983-08-29 | 1985-09-17 | Canadian Patents & Development Limited | Lighting panel with opposed 45° corrugations |
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